beta decay, radioactive decay and half life
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11 Terms
(6.18) describe the process of B- decay
a neutron becomes a proton and an electron
(6.18) what happens to the proton produced in B- Decay
stays in the nucleus
(6.18) what happens to the electron produced in B- Decay
emitted from the nucleus as a fast moving electron
(6.18) describe the process of B+ decay
a proton becomes a Neuton and a positron
(6.18) what happens to the neutron produced in B+ decay
stays in the nucleus
(6.18) what happens to the positron produced in B+ decay
emitted from the nucleus at a high speed
(6.18) how is a beta minus particle different form an electron that is found in a stable atom
a beta particle is an electron that is emitted from an unstable nucleus, while an electron in a stable atom is found in shells orbiting the nucleus
(6.21) nuclei that gave undergone radioactive decay also undergo
rearrangement of their protons and neutrons resulting in loss of energy in the form of gamma radiation
(6.24) what is the unit of activity of a radioactive isotope
becquerel/Bq
(6.25) what is a half-life
time taken for half of the undecayed nuclei to decay